Roller wedge riveter



April 25, 1933. A A, NORM 1,905,047

ROLLER WEDGE RIVETER Filed June 21, 1930 [Zllan Q/V'orn/ I to further assist in returning'the' plunger and gaskets 18 or*provided for sealingthe space in which the compressioilfspring l'i'is Z mountedagainst the escape of compressed .air. 'The riVete r head,11 .-l1as seoured to or e- 1 sideIa 'G-IyIi-Hdefi he d 5 19 to whi eh-is attached 1 'almaifl cylinder 20 by rods 21 and nuts 22 which engage a supplemental cylifideihead v 2334A; secondary cylinder" 24 isiproyidedj: closed by a head" 25'. horizontally :mov-n able piston rod 26 has securedthereto a .7 mainpiStOnVhead-QZ and a secofidary p istoir 'eylinders inorder to admit oompressedalr yorthe 1 Working fluid to thelright lialia ends pithep to am o el ifort f a tuet "St ok h e f ret mst i e ibi -on y 'iiieee slsaliy to]. admit the? working fluid to the I Jeft-lhahd end' bfflthe secondary; cylinder. A-

gistaa; head 27 has-a -;p'roject'fioi1 29; which ts into an "opeiling'in theoylinder head-[I9 tension which is threaded'ihto. the wedge lower surface of the wedge 30is formed with ai l g t inc in a at 3 a r la v y I h ar p i'nl'ii e'as at 34. I The ,inelihes c' orrespond to the upper Isurfaoesglfiand 3650f (lge iil, which is attached b e eefr to 'iliiii ger 1 3. f 'The right-hand end of the v f lower' wedg'e' 31' engages-auabutment niem lheu which refoeiyes',the pressure of a "gr' 'ae bearing against the lower fendiofl' I v 'iuffaee opening tO formed ine the'jriveter, frame." The spring39,;thereore;-assists in -li the r e n mcw mem ij pmi ger. 5 1

Tplate'f 42, suitably j securedi I as, loolts 5 is; sapp e i wehth 'i s in tr it the pressure p ".w d '-m e er'-- wedge member =31}. It

IT-win be obviouss thatgtheineliiles oftheiwedge -i i i l qa re 13 i ,d s hes i a t a the ti l travelnofgthe piston rod 26 and upper wedge :3 will'r educ a s b tant a ly r p d-m v -e een eqft ew iealjmov bl 12 g@r,;w fl 5, the latter p ortion ofthe stroke will transmit 11the station ry g e Plate 4:2 and the fia surface 41'ofthelwedge merliber g I 'movement'equal toonei-haltfi o-fith eftotalhorif-plates 48 an'd :49=,,.therefore,, tend Ito-1 II .tai-n the three rollers i oorreet relationship .a donly-permitytheyertieal imovemer -lt of' the "axis. of the lower roller, relatiye to I the upp S ree of he w dgeiso is} fia i 41, parallel "to the lowersuifaeegpi I a I a working; stroke.

- shown at the end of a; worki r i'gvstrokei a correspondingly" increased pressure. The Wedge. 30; isguided on ,its upper' slde by a pair of rollers 46 and 47"which travel. along" ""Itwill be'readily apparent h t erolle'rs 45', '46-'and 47 will all partake of a horizontal zontalf movement iofjtthe a-wedge 30" and the lower roller will have in addition; a short vertica1 ncfovement corresponding to the tra el of the'working plunger. The rollers 45 and-46 are initially in vertical'alignment and it is desirable to maintaiufthe irollers' in;

. 2, .I 'I I; WI? INTI e i A time us y z ibee at e :P aP-F -5 'i t on aI 'ma d l s stheu e fger I "teetlrifor preventing displacement; I I I I I 1whereas,,;aceording;to thegpreseiit,iliventioui th'e end fofthefworkingstrokeq ofz-"the i piston in, order to oushion the movement :subs'mnfia 1y do ing. h left'h d,i a f hi8 :,I fl{i:i1, Cylinder. neaftheendf of th SP Pke. I n r der 'to transmit afhor izoiitalg move rmei'lt o'f the piston rodi 'into-vertical inoyemehtof the plunger, 3 pairof wedge memhers 30' and 31" are employed; The wedge mem ber 30 is attached byl pin' 32 1150. an; ex?

b e r ng mefi Templey pa at the" endefof the tineithfpiv t .P llfQfE heillbw'er roll e 45- f T Q' 1 cks5 'an 53:. a e u ed f r ent-foa s I I movement in -slotsformediir the pjla s 181 a member'aud is also secured by; a pimaud ithiieadi connection .to the: piston" rod- 26.1 The and .149; as indicated 5551111 Figure} sw ft upp r o r -'I f"Inordertoinsure",hatthe ollers; are' in.

-'. m3 Posi on wi he esp'e ti e' t we e at thebeginningoifthe-working'stroke, the 1 plates are. so; designedthat the rearwardi I edges will abutaga' injst the oylinjder heady l Q atI the' end oi;the!returnastrokeio'f tha j actuating 1 wedge and therefore; if'the roller 7 hoarryingxplates have been displaced towards e ,the right, the- 'engagement hetweenthe rearard -Jends T56 and; the cylinder head- 19 willes I serve to; return theEj-platejs to 7 their, oorre'ct positions: Should the rollfer earrying plates be displaced in thewopposite direotion they '7 ..v e. willbereturned by;the'engagementbetween I {O .the; edgetherearward end57 oitheaetuating wed'gefi i- V J I M I andinturnedfingers-158,ahd 59,-;whiohzfare s ofth Wedge members .;3O' ,a nd 31 formed, integral with, the [plates- 48 landi &9

and extend; -;as projections trom'"the rear wardi-r exte sionsf 56. '-Therefore, i-i1 either ease, the return? stroke; of? the sometime 32 JWedge1=will bring the roller oarryiiigqplates to their Correct r positions for :the: zstartj-of mee in iis] mitted to the left-hand end of the auxiliary cylinder 24 and produces movement of the piston rod 26, carrying the wedge 30 towards p p the right. The plunger 13 will be moved upwardly by the force of the springs 17 and e 39 as well as by the force of compressed air, 7 V

which may be admitted to the annular space in which the spring 17 is supported. Therefore, the pressure should be suflicient to hold the roller 45 in rolling contact with the inclined surfaces of the wedges and 31 and i l prevent any displacement of the roller carrying plates, but if the plungershould not return as fast as it should, the roller carryingplates may remain in stationary position and will not be moved until the rearward end 57 of the wedge 30 engages the fingers 58 and 59, thereby serving to return the initial position. The working stroke of the wedge produces pressure actingthrough the lower roller to cause movement ,of'the work- 'ing plunger while the upper roller guides the movement of the wedge, The rolling of the rollers causes m0vement=of the rollers and plates equal to one-half the movement of the wedge.

Various modi invention as expressed in the appended claim. Y l

I claim:

In a machine of the character described, a longitudinally movable wedge, means for producing movement of saidwedge in oppo- 'site directions, a transversely movable plunger actuated in one direction by v.the working stroke of said wedge, resilient means for returning said plunger during the return stroke of said wedge, a wedgeshaped block carried by said plunger, said Wedge and said wedge-shaped block eachhaving a double inclined working surface for producing initial rapid movement of said plunger with respect to the movement of saidwedge, a movable roller in rolling contact with the working surface of said wedge and said wedge-shaped block, means, guided said wedge supporting the axis of said roller for movement in the direction of movement of said plunger with respect to the movement of said wedge and means actuated by the return movement of ,saidwedge for moving said last-named means and said' roller into a predetermined initial position with respect to the working surfaces of said wedge and saidwedge-shaped block.

Signed at Chicago, Illinois, this 16th day of June, 1930.

ALLAN A. NORIN.

roller. bearing plates and the rollers totheir" fications may be resorted to without departing from the spirit of the plunger and final slow movement of said for movement in the direction of travel of 

